Operations on Functions

if f(x) = 3x + 2 and g(x) = 11 - 5x,

find (f + g)(x)

• -2x + 13

• -2x + 9

• 8x + 13

• 8x + 9

Tags

CCSS.HSF-BF.A.1B

If g(x) = x² - 4x - 7 and h(x) = 5x² - 8,

find (g - h)(x)

• 6x² - 4x - 15

• -4x² - 4x - 15

• -4x² - 4x + 1

• -5x² - 4x + 1

Tags

CCSS.HSF-BF.A.1B

if j(x) = (2x + 3) and k(x) = (3x + 2)
find  $\left(j\cdot k\right)\left(x\right)$  

•  $5x+5$  

•  $6x^2+6$  

•  $6x^2+6x+6$  

•  $6x^2+13x+6$  

Tags

CCSS.HSF-BF.A.1B

f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f - g)(x).

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

Tags

CCSS.HSF-BF.A.1B

If g(x) = 6x + 4  and
f(x) = 2x - 7
Find f(x) * g(x)

• 8x - 3
• 4x + 11
• 12x² - 28
• 12x² - 34x - 28

Tags

CCSS.HSA.APR.A.1

Find f(3) + g(2) if f(x)= x+2 and g(x)=5x-1

• 2
• 5
• 9
• 14

Tags

CCSS.HSF.IF.A.2

Find (f-g)(2)
 if f(x)=4x+10 and g(x)=3x-7

• 18
• -1
• 19
• 17

Tags

CCSS.HSF-BF.A.1B

g(x)=x-1
f(x)=x²-2x
Find (g-f)(x)

• -x²+3x-1
• -x³+x²+5x-4
• x²-3x+1
• x²+3x+1

Tags

CCSS.HSF-BF.A.1B

f(x)=2x+4
g(x)=3x²-1
Find (f⋅g)(x)

• 6x⁴+12x³-4x²-8x
• -6x³+12x²+2x-4
• 6x³+12x²-2x-4
• 5x²-18x+20

Tags

CCSS.HSF-BF.A.1C

(f + g) (x)

• 5x² + 3x

• 4x² + 3x

• 5x² - 3x

• 4x² - 40x

Tags

CCSS.HSF-BF.A.1B